Heating apparatus for motor vehicles



Dec. 1, 1931. A. R. JOHNSON I HEATING APPARATUS FOR MOTOR VEHICLES pril 5,

Filed A wilful/ Patented Dec. 1, 1931 UNITED!- STATE PA TfOi-" I E AMOS R. JOHNSON, or MINNEAPOLIS, MINNnsoT-A, AssreNoiz. or o N-roUnlTH To 'Anr'A. SUNDEEN, or ,MINNEAPOLIS, INNnso A HEATING ArrAnATUs non MoToR' vnirienns Application filed April 5,

This invention relates to heating apparatus for motor vehicles, and'it is an object of the invention to provide a device of this kind wherein the exhaust of the engine is employed as the heating medium.

The invention also has for an object to' ing having suitable discharge together with a heating medium within the casing, and

'15 means for forcing air around the medium within the casing and out through the dis-: charge thereof.

A still further object of the invention 1s to provide a device of this kind with means whereby the heated air as discharged is effectively deflected.

The invention consists in the details of construction and in the combination and 'ar rangement of the several parts of-my improved heating apparatus-for a motor vehicle whereby certain important advantages are attained and the device rendered s1mpler,- less expensive and otherwise more convenient and advantageous for use, as will be hereinas after more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein tion and partly in elevation illustrating a' heating apparatus for motor vehicles con-' J structed in accordance with an embodiment of my invention;

Figure 2 is a View in rear elevation of the device as illustrated in Figure 1 with certain of the parts omitted and a portionbroken away;

930. Serial No. 441,929.

' Figure 3 is adetailed sectional view taken substantially on the line 33 of Figure 1. Asherein disclosed, my improved heater comprises a casing C'of desired .configurajtion and dimensions and which has its'rear face open, This rear open face; however,

is adapted to be closed by a-slip closure member M held in applied position by screws 1 or the. like. coacting with the side flanges 2 of the member M andthe adjacent side m5 walls of the casing O, 'The closure'member M in its upper portionlis provided with an opening 3 and in its lower portion' with an opening 4 and substantially at its axial center the member M is provided with a further s openingo: A, v

Positioned within the casmgC 1s BfbOX or eore B the'w'alls ofwhich being ofzmetal or kindred material which will readily radiate heat. This box or core B is of such dimen- "05 sions as to be substantially entirely;surrounded within the casing G by an air chamber or The box or core Brismaintained' in desired applicdposition within the casing C 7o by the rods 7 which are disposedthrou h the applied closure member, LT and, vwel ed or otherwise anchored to the rear wall8 of the box or core B. Theserods 7, as herein disclosed, are of such length to permit the outer end portions thereof to be effectively engaged, with the dashD so thatuthe heater proper will be supported within the body of the car by the dash.

plates 9 bridging the spaoe between thebox or core B andcasing G and providing means whereby screws 10 or thelike may be em."-

ployed to maintain thebox or core B and Cas T ing 0 in desired assembled relation.

or core B and in order that the air as dis The side walls of the blo x or core BAhaVe B welded" or otherwise .secured thereto the Figure 1 is a view partly in vertical sec snugly disposed respectively through the openings 3 and 4 in the closure member M. The nipple 16 is in communication through the pipe line 18 with the exhaust pipe P of the engine while the nipple 17 has leading therefrom as may be preferred an exhaust or carry-ofi pipe 19. r

The interior of the box or core Bis provided therein with the baffle plates 20 projecting inwardly from opposed walls of said box or core B w'ith adjacent baflle plates oppositely disposed. These baflie plates result in the exhaust gases entering the box or core B to pass therethrough in a tortuous path,

thus assuring a maximum of heating efli- I ciency for. the air circulating within the casing C around the box or core B.

In communlcatlon with theopening 5 1s a discharge spout 21 of a fan casing F and working in a conventionalmanner within the casing F'is a fan 22; This fan 22 maybe driven by-an electric motor or in any manner preferred. 1 V r p It is also to be noted that by providing within the box or core B the bailie plates 20,

said boxor core also serves as a mufiier.

From the foregoing description it is thought to be obvious that aheating apparatusfor a motor vehicle constructed in accordance with my invention is particularly well'adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without deeral parts herein shown'in carrying out my invention in practice except as'hereinafter I claimed.

Iclaim: Q i V V A heater of the class described comprising a casing, a box supported within the casing,

and a plurality of blades rotatably mounted in said fan casing and adapted upon rotation thereof to force air into said casing and outwardly of said discharge opening means for circulating a heated fluid medium through the box, and means for deflecting in different directions the air passing out through the discharge opening in the casing.

In testimony whereof I hereunto aflix my signature.

' AMOS R. JQIINSON.

said box being of such dimensions to provide 7 7 within the casingan air space substantially surrounding the box, a wall of the casing being provided with an air discharge opening, fan means connected tov said casing for forcing air through the casing around the box and out through the discharge opening,

said fan means comprising a fan casing ex-.

tending outwardly of one wall ofthe casing 

